--- old/src/cpu/x86/vm/assembler_x86.hpp	2015-06-11 10:35:40.603426082 -0700
+++ new/src/cpu/x86/vm/assembler_x86.hpp	2015-06-11 10:35:40.539425081 -0700
@@ -1666,6 +1666,8 @@
 
   // Shift Right by bytes Logical DoubleQuadword Immediate
   void psrldq(XMMRegister dst, int shift);
+  // Shift Left by bytes Logical DoubleQuadword Immediate
+  void pslldq(XMMRegister dst, int shift);
 
   // Logical Compare 128bit
   void ptest(XMMRegister dst, XMMRegister src);